Results 61 to 70 of about 16,938 (165)

Persistent in vitro nociceptor hyperexcitability and axonal retraction produced by repeated paclitaxel doses

The FEBS Journal, EarlyView.
Repeated paclitaxel exposure causes long‐lasting nociceptor hyperexcitability and axonal retraction in adult sensory neurons. Using a long‐term primary nociceptor culture, we show that hyperexcitability is mediated by sequential upregulation of NaV1.8, TRPV1, TRPA1, and TRPM8 channels.
Angela Lamberti, Victor Moreno Lozano, Asia Fernández‐Carvajal, Antonio Ferrer‐Montiel   +3 more
wiley   +1 more source

Trafficking and potentiation of Nav1.7 and Nav1.8 channels are mediated by IQGAP1

The Journal of Physiology, EarlyView.
Abstract figure legend IQGAP1 binds to the voltage‐gated Nav1.7 and Nav1.8 channels and TRPA1 channels in sensory neurons. Inflammatory mediators (IM), including PGE2 and TNFα, released during nerve injury and inflammation activate intracellular signalling messengers such as PKA, p38 MAPK and Cdc42 through their respective receptors.
Xuming Zhang, Pabitra Hriday Patra, Jinquan Yang   +2 more
wiley   +1 more source

Electrostatic tuning of NaV channel activation by the domain II S3–S4 extracellular loop

The Journal of Physiology, EarlyView.
Abstract figure legend Voltage‐gated sodium (NaV) channels are critical for electrical signalling, yet the molecular determinants that tune isoform‐specific activation remain incompletely understood. Here, we show that charged amino acids in the extracellular DII S3–S4 loop of NaV1.7 play a key role in setting voltage‐dependent activation.
Ashvriya Thapa, Lotten Ragnarsson, Hue Tran, Angelo Keramidas, Jennifer R. Deuis, Irina Vetter   +5 more
wiley   +1 more source

Impaired Motor Function in a Zebrafish Stathmin‐2 Knockout Model

Developmental Neurobiology, Volume 86, Issue 4, October 2026.
ABSTRACT Stathmin‐2 (STMN2) is a microtubule‐associated protein that plays a role in the stability of microtubules in axons of the nervous system of animals. In this study, we generated a novel zebrafish STMN2 knockout (KO) model. STMN2 is represented by two genes in the zebrafish genome: stmn2a and stmn2b.
Tyler J. N. Gurberg, Ziyaan A. Harji, Christian J. Rampal, Joséphine Sacy‐Richer, Amy Wang, Esteban C. Rodríguez, Gary A. B. Armstrong   +6 more
wiley   +1 more source

An improved competitive inhibition enzymatic immunoassay method for tetrodotoxin quantification

Biological Procedures Online, 2012
Quantifying tetrodotoxin (TTX) has been a challenge in both ecological and medical research due to the cost, time and training required of most quantification techniques.
Stokes Amber N, Williams Becky L, French Susannah S   +2 more
doaj   +1 more source

Dorso‐Ventral and Night‐Day Regulation of Extracellular K+ Dynamics in Mouse Hippocampal Astrocytes

Glia, Volume 74, Issue 9, September 2026.
Hippocampal astrocytic K+ buffering varies by region and time. Ventral astrocytes show faster K+ accumulation due to reduced Kir4.1 function. Such regional divergence is modulated by circadian shifts in Kir4.1 and gap junction coupling. ABSTRACT Astrocytes regulate extracellular potassium (K+) through multiple mechanisms operating across distinct ...
Nariman Kiani, Kabeer Abubakar, Tin Luka Petanjek, Monique Esclapez, Anton Ivanov, Christophe Bernard   +5 more
wiley   +1 more source

Early Developmental Neuronal Activity Impacts Oligodendrocyte Differentiation Through AMPA Receptors

Glia, Volume 74, Issue 8, August 2026.
In early brain development, neuronal activity reduces OPC differentiation. Decreased neuronal activity changes oligodendrocyte gene expression, including upregulating glutamate receptor genes. AMPA signaling regulates the final stages of OPC differentiation.
Tessa E. Allen, Graham Peet, Luis E. Gomez Wulschner, Won Chan Oh, Wendy B. Macklin   +4 more
wiley   +1 more source

Tetrodotoxin Sensitivity of the Vertebrate Cardiac Na+ Current

Marine Drugs, 2011
Evolutionary origin and physiological significance of the tetrodotoxin (TTX) resistance of the vertebrate cardiac Na+ current (INa) is still unresolved.
Jaakko Haverinen, Minna Hassinen, Matti Vornanen   +2 more
doaj   +1 more source

Astrocytic mGluR5 Regulation of Synaptic Transmission is Activity‐Dependent in Adult Rats

Glia, Volume 74, Issue 8, August 2026.
In adulthood, astrocytic mGluR5 increases synaptic efficacy through presynaptic A2ARs. This occurs when a small number of synapses are activated simultaneously. This pathway is abolished when numerous synapses are recruited. ABSTRACT Data accumulated over the last two decades have demonstrated that astrocytes play key roles in the regulation of ...
Sarah Mountadem, Muna L. Hilal, Dylan Pommier, Dorian Arnouil, Valentin Clément Langlais, Vincent Simon, Aurélie Amadio, Marie Miegebielle, Sébastien Marais, Charlène Joséphine, Astrid Cannich, Marjorie Varilh, Julien Bourel, Daniela Cota, Giovanni Marsicano, Alexis‐Pierre Bemelmans, Philippe Ciofi, Stéphane Henri Richard Oliet, Aude Panatier   +18 more
wiley   +1 more source

Toxic mechanism and detection methods of tetrodotoxin [PDF]

MATEC Web of Conferences
Tetrodotoxin (TTX) was first isolated in the early 20th century and has significant public health implications, especially in areas where puffer fish are consumed, such as Japan.
Xu Yunzhe
doaj   +1 more source